[FIX] payment_stripe: change mobilepay code

The payment with MobilePay payment method failed due to the wrong code.

opw-3859956

closes odoo/odoo#161481

Signed-off-by: Antoine Vandevenne (anv) <anv@odoo.com>

addons/payment_stripe/const.py

@@ -29,6 +29,7 @@ PAYMENT_METHODS_MAPPING = {
     'sepa_direct_debit': 'sepa_debit',
     'afterpay': 'afterpay_clearpay',
     'clearpay': 'afterpay_clearpay',
+    'mobile_pay': 'mobilepay',
     'unknown': 'card',  # For express checkout.
 }